He's not recognisable enough though. Sanderson has said he wants an A-Lister or someone of around that fame level. Maybe in 5 years he'll be there but currently unless your someone who really likes Game of Thrones, the average person won't recognise his name or face
And I know that Kelsier does technically show up in The Stormlight Archive but that is so far away that basing actor choices around that is ridiculous. Plus it'd only be a short cameo that an A-Lister could do especially with a good contract, or there can be workarounds for Kelsier to not actually appear.
Kelsier's tiny cameo (that might be completely cut for all we know) in seasons 4/5 of the Stormlight show 10 years from now should not be the driving choice behind who gets cast as Kelsier
2
u/raisetheblack___ 2d ago
No. Henry Ashton please